Ecological Risk Assessment of Heavy Metals in Sediments from Aha Lake, China

Xian Fei Huang; Ji Wei Hu; Cun Xiong Li; Jia Jun Deng; Fan Xin Qin; Cui Hong Jiang

doi:10.4028/www.scientific.net/AMR.356-360.896

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 356-360Ecological Risk Assessment of Heavy Metals in...

Ecological Risk Assessment of Heavy Metals in Sediments from Aha Lake, China

Abstract:

In the present work, contamination and potential ecological risk of six heavy metals (Pb, Cd, Hg, As, Cu and Zn) in sediments of Aha Lake, one of the five drinking water sources for Guiyang City, were assessed based on a method which is associated with toxic-response factors of contaminants. For comparison, the two sets of reference data representing the pre-industrial and the local baseline pollution levels were employed. When the pre-industrial levels were taken as references, the accumulating coefficients on average diminished in the order of Zn > As > Hg > Cd > Cu > Pb, and the potential ecological risk descended in the order of Hg > Cd > As > Cu > Zn > Pb. When the local baseline values worked as references, the accumulating coefficients on average diminished in the order of Cd > Zn > Hg > Cu > As > Pb, and the potential ecological risk descended in the order of Cd > Hg > As > Cu > Zn > Pb. It is evident that Cd and Hg are the critical elements in terms of potential ecological hazard in Aha Lake among these six heavy metals.

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Advanced Materials Research (Volumes 356-360)

Pages:

896-902

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.356-360.896

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Online since:

October 2011

Authors:

Xian Fei Huang, Ji Wei Hu, Cun Xiong Li, Jia Jun Deng, Fan Xin Qin, Cui Hong Jiang

Keywords:

Aha Lake, Heavy Metal, Potential Ecological Risk, Sediment

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